Keyword: «fish»

BIOECOLOGICAL FEATURES OF PERCA THE BASIN OF THE RIVER IRTYSH

Authors:

Yana Sagitylina,

Elena Promotorova

The study of bioecological features of the common lower Irtysh perca was conducted in the vicinity of the village of Sumkino in 2019. The caught ichthyomaterial was subjected to morphological and biological analysis. As a result of ball's research, the specificity of indicators of native perch in comparison with individuals.

Keywords: morphological analysis, fertility, nutrition, irtysh river, ichthyology, fish, perch, biological methods, linear weight growth

HOW THE ARAL SEA WAS DYING

Authors:

Svetlana Prohorova,

Elena Lihodeeva,

Natalya Deryabina

The scenario of the disaster film, which reflects the causes that led to the disaster – the drying up and death of the flora and fauna of the Aral Sea, an environmental disaster. The measures taken by people to save the Aral Sea are reflected, such as: planting of plants, construction of a dam and others. It is told that there are other large bodies of water in the world that are beginning to repeat the sad fate of the Aral Sea, in particular, Lake Chad in Central Africa and Lake Salton Sea in the south of the US state of California. Tasks aimed at identifying the most significant issues of the disaster have been developed.

Keywords: death, climate, causes, fish, plants, aral sea, catastrophe, rapid development of agriculture, salt-dust transfer, planting of plants, dam, wild animals, poisonous salts